public class Test {
    public static void main(String[] args) {
        String startGene = "AAAACCCC";
        String endGene = "CCCCCCCC";
        String[] bank = {"AAAACCCA","AAACCCCA","AACCCCCA","AACCCCCC","ACCCCCCC","CCCCCCCC","AAACCCCC","AACCCCCC"};
        Solution solution = new Solution();
        System.out.println(solution.minMutation(startGene, endGene, bank));
    }
}
